Method, device, medium and equipment for calculating pyrolysis parameters of shale oil layer
By combining liquid nitrogen freezing technology and nuclear magnetic resonance T2 spectroscopy, the problem that the pyrolysis parameter S1 of shale oil reservoirs cannot be effectively restored to the formation conditions has been solved, achieving high-precision continuous quantitative characterization and meeting the accuracy requirements of shale oil and gas exploration and development.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2024-11-07
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, the pyrolysis parameter S1 of shale oil reservoirs cannot be effectively restored to the formation conditions, resulting in low accuracy of calculation results and insufficient accuracy in shale oil exploration and development.
Samples were transferred to the laboratory for pyrolysis analysis using liquid nitrogen freezing technology. The pyrolysis parameter S1 was corrected by combining nuclear magnetic resonance T2 spectrum. The starting time of S1 was calculated by nuclear magnetic resonance logging based on the oil-bearing volume, thus achieving continuous calculation.
It improves the calculation accuracy of pyrolysis parameter S1, eliminates the influence of complex lithology on well logging curves, and meets the technical requirements of shale oil and gas exploration and development.
Smart Images
Figure CN121994853A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of well logging evaluation technology, and in particular to a method, apparatus, medium and equipment for calculating pyrolysis parameters of shale oil reservoirs. Background Technology
[0002] With the deepening of exploration and development, shale oil has gradually become a hot spot in recent years and an important component of ensuring national energy security. However, due to the difficulty in identifying sweet spots, the low accuracy of key parameter characterization, and the imperfection of development technologies, shale oil exploration and development is still in its early stages. Therefore, there is an urgent need to provide reliable and highly accurate evaluation parameters for shale oil sweet spot assessment.
[0003] Two geochemical parameters reflecting the content of retained oil in shale oil are chloroform bitumen "A" and the pyrolysis parameter S1. The pyrolysis parameter S1 is the content of liquid hydrocarbons preserved in a rock sample evaporated at a certain heating rate to 300℃. Since the pyrolysis temperature is below 300℃, it essentially does not contain asphaltene. Currently, the pyrolysis parameter S1 is generally obtained through pyrolysis experiments.
[0004] However, the loss of light hydrocarbons is significant during core sampling, preservation, and sample preparation. Furthermore, the amount of loss varies greatly depending on the physical properties, fluid properties, organic carbon content, formation pressure, ambient temperature, and preservation time. The S1 value obtained by the pyrolysis experiment method cannot be effectively restored to the formation conditions, resulting in low accuracy of the calculation results. Summary of the Invention
[0005] The main objective of this invention is to provide a method and apparatus for calculating pyrolysis parameters of shale oil reservoirs, in order to solve the technical problem that the pyrolysis parameters S1 obtained in the prior art cannot be effectively restored to the formation conditions, resulting in low accuracy of the calculation results.
[0006] To achieve the above objectives, the present invention provides a method for calculating pyrolysis parameters of shale oil reservoirs. The method includes the following steps: S10, transferring a sample to a laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain pyrolysis parameters S1; S20, correcting the pyrolysis parameters S1 obtained from the pyrolysis analysis to the amount of retained oil; S30, converting the amount of retained oil into oil-bearing volume; S40, calibrating the nuclear magnetic resonance T2 spectrum using the oil-bearing volume to determine the starting time for calculating the pyrolysis parameters S1 using nuclear magnetic resonance logging; S50, continuously calculating the pyrolysis parameters S1 based on the starting time of the pyrolysis parameters S1 and the nuclear magnetic resonance logging T2 spectrum.
[0007] Optionally, step S10 includes the following steps: S110, after the core is removed from the tube, the sample is transferred to the laboratory using liquid nitrogen freezing technology; S120, parallel samples are prepared in liquid nitrogen; S130, the parallel samples are divided into sample 1 and sample 2, sample 1 is subjected to pyrolysis analysis, and sample 2 is subjected to nuclear magnetic resonance T2 spectrum measurement; S140, the pyrolysis parameters S1 and nuclear magnetic resonance T2 spectrum are obtained.
[0008] Optionally, step S20 includes the following step: S210, correcting the pyrolysis parameter S1 obtained from the pyrolysis analysis to the amount of oil retained based on the following formula: (1) Among them, W r The amount of oil retained after conversion using S1 is expressed in mg / g; S1 is the pyrolysis parameter, expressed in mg / g; C is a correction factor, representing the hydrocarbon content coefficient in crude oil.
[0009] Optionally, step S30 includes the following step: S310, converting the retained oil volume into an oil-containing volume based on the following formula: (2) Among them, V o The measured oil-bearing volume from S1 conversion is dimensionless; W r The amount of oil retained after S1 conversion is expressed in mg / g; B is a correction factor.
[0010] Optionally, step S40 includes the following steps: S410, determining the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging based on the nuclear magnetic resonance T2 spectrum; S420, determining the starting time for S1 using the T2 value where the mean square error is minimized using the following formula: (3) (4) in, The NMR calculation of the oil-bearing volume at a starting time 'a' is dimensionless. It is the oil volume component corresponding to the i-th NMR time T2; V is the root mean square error at the starting time 'a'; o The measured oil volume is dimensionless; n is the number of samples.
[0011] In addition, to achieve the above objectives, this application also provides an apparatus for calculating pyrolysis parameters of shale oil reservoirs. The apparatus includes: a pyrolysis module for transferring samples to a laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain S1; and a correction module for correcting the S1 obtained from the pyrolysis analysis to the amount of retained oil. The conversion module is used to convert the retained oil volume into oil-bearing volume; the first calculation module is used to calibrate the nuclear magnetic resonance T2 spectrum using the oil-bearing volume to determine the starting time of the nuclear magnetic resonance logging calculation S1; the second calculation module is used to continuously calculate S1 based on the starting time of S1 and the nuclear magnetic resonance logging T2 spectrum.
[0012] In addition, to achieve the above objectives, embodiments of this application also provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method for calculating shale oil reservoir pyrolysis parameters as described in any embodiment of this application.
[0013] Furthermore, to achieve the above objectives, embodiments of this application also provide a computing device, which includes: at least one processor, a memory, and an input / output unit; wherein the memory is used to store a computer program, and the processor is used to call the computer program stored in the memory to execute the method for calculating shale oil reservoir pyrolysis parameters as described in any embodiment of this application.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The method for calculating shale oil reservoir pyrolysis parameters provided in this application determines the starting time for calculating S1 using nuclear magnetic resonance T2 spectra calibrated by oil-bearing volume. By using the starting time of S1 and the nuclear magnetic resonance T2 spectra, continuous calculation of S1 is achieved, creating a continuous quantitative characterization method for calculating S1 using nuclear magnetic resonance logging. This method realizes continuous quantitative characterization of S1 and eliminates the influence of complex lithology on logging curves, significantly improving the accuracy of the calculation results and ensuring that the accuracy fully meets the technical requirements for shale oil and gas exploration and development. Attached Figure Description
[0015] Figure 1 A flowchart illustrating a method for calculating pyrolysis parameters of shale oil reservoirs provided in this application embodiment; Figure 2 A structural block diagram of the apparatus for calculating pyrolysis parameters of shale oil reservoirs provided in the embodiments of this application; Figure 3 Root mean square error analysis charts for different T2 start times provided in the embodiments of this application; Figure 4 A diagram showing the results of continuous calculation S1 provided in this application embodiment; Figure 5 The S1 calculation error analysis diagram provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the medium provided in the embodiments of this application; Figure 7 A schematic diagram of the structure of a computing device provided in an embodiment of this application.
[0016] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0017] It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the application. Rather, these embodiments are provided to make the disclosure more thorough and complete, and to fully convey the scope of the disclosure to those skilled in the art.
[0018] To address the aforementioned technical problems, embodiments of this application provide a method for calculating pyrolysis parameters of shale oil reservoirs, such as... Figure 1 , Figures 3-5 As shown, the method may include the following steps: S10: The sample was transferred to the laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain the pyrolysis parameters S1.
[0019] Specifically, pyrolysis refers to the reaction process in which a substance decomposes when heated. Many inorganic and organic substances undergo decomposition reactions when heated to a certain degree. The pyrolysis process does not involve catalysts or other forms of energy, such as reactions caused by ultraviolet radiation.
[0020] In an exemplary embodiment, step S10 may include the following steps: S110, after the core is removed from the casing, the sample is transferred to the laboratory using liquid nitrogen freezing technology; S120, prepare parallel samples in liquid nitrogen; S130, the parallel sample is divided into sample 1 and sample 2, sample 1 is pyrolyzed, and sample 2 is subjected to nuclear magnetic resonance T2 spectrum measurement; S140, obtain the pyrolysis parameter S1 and the nuclear magnetic resonance T2 spectrum.
[0021] Nuclear magnetic resonance (NMR) is the process by which non-zero spin atomic nuclei absorb electromagnetic waves of a specific frequency and undergo energy level transitions under the influence of an external magnetic field. Non-zero spin nuclei possess magnetic moments, and their spin energy levels undergo Zeeman splitting under the influence of an external magnetic field. NMR spectroscopy is a branch of spectroscopy, with its resonance frequencies in the radio frequency band. The T2 spectrum of NMR is the transverse relaxation time of NMR, representing the spin relaxation that occurs within protons.
[0022] S20, the pyrolysis parameter S1 obtained from pyrolysis is corrected to the amount of oil retained.
[0023] In an exemplary embodiment, step S20 may include the following steps: S210, the pyrolysis parameter S1 obtained from pyrolysis is corrected to the amount of oil retained based on the following formula: (1) Among them, W r The amount of oil retained after conversion using S1 is expressed in mg / g; S1 is the pyrolysis parameter, expressed in mg / g; C is a correction factor, representing the hydrocarbon content coefficient in crude oil.
[0024] S30, converting the amount of retained oil into oil-containing volume.
[0025] In an exemplary embodiment, step S30 may specifically include the following steps: S310, the amount of retained oil is converted into oil-containing volume based on the following formula: (2) Among them, V o The measured oil-bearing volume from S1 conversion is dimensionless; W r The amount of oil retained after S1 conversion is expressed in mg / g; B is a correction factor.
[0026] S40, using the oil-bearing volume to calibrate the nuclear magnetic resonance T2 spectrum, determines the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging.
[0027] In an exemplary embodiment, reference is made to Figure 3 Step S40 may specifically include the following steps: S410, Based on the nuclear magnetic resonance T2 spectrum, determine the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging; S420, the starting time of S1 is determined by the following formula when the mean square error is minimized: (3) (4) in, The NMR calculation of the oil-bearing volume at a starting time 'a' is dimensionless. It is the oil volume component corresponding to the i-th NMR time T2; V is the root mean square error at the starting time 'a'; o The measured oil volume is dimensionless; n is the number of samples.
[0028] Specifically, Figure 3 The root mean square error analysis charts for different T2 start times provided in the embodiments of this application.
[0029] S50, Reference Figures 4-5 The pyrolysis parameter S1 is continuously calculated based on the starting time of the pyrolysis parameter S1 and the nuclear magnetic resonance logging T2 spectrum.
[0030] Specifically, Figure 4 This is a diagram showing the results of continuous calculation S1 provided in an embodiment of this application. Figure 5This is a graph illustrating the error analysis of S1 calculation provided in an embodiment of this application. From... Figure 5 It can be seen that the accuracy of S1 calculated by this method is relatively high.
[0031] Furthermore, the accuracy analysis of the S1 calculation results is shown in the table below. Table 1
[0032] In one or more exemplary embodiments, the starting time for calculating S1 using nuclear magnetic resonance T2 spectra calibrated by oil-bearing volume is determined; continuous calculation of S1 is achieved using the starting time of S1 and the nuclear magnetic resonance T2 spectra, thus creating a continuous quantitative characterization method for calculating S1 using nuclear magnetic resonance logging. This method achieves continuous quantitative characterization of S1 and eliminates the influence of complex lithology on logging curves, significantly improving the accuracy of the calculation results and ensuring that the accuracy fully meets the technical requirements for shale oil and gas exploration and development.
[0033] Based on the above embodiments, refer to Figure 2 Another embodiment of this application also provides an apparatus for calculating pyrolysis parameters of shale oil reservoirs. The apparatus 200 for calculating pyrolysis parameters of shale oil reservoirs may include the following modules: The pyrolysis module 210 is used to transfer samples to the laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain S1. The correction module 220 is used to correct the S1 obtained from the pyrolysis analysis to the amount of retained oil. Conversion module 230 is used to convert the amount of retained oil into oil-containing volume; The first calculation module 240 is used to calibrate the nuclear magnetic resonance T2 spectrum using the oil-bearing volume and determine the start time of the nuclear magnetic resonance logging calculation S1. The second calculation module 250 is used to continuously calculate S1 based on the start time of S1 and the nuclear magnetic resonance logging T2 spectrum.
[0034] Based on the above embodiments, this application also provides a computer-readable storage medium, see reference. Figure 6The computer-readable storage medium shown is an optical disc 50, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it implements the steps described in the above-described method embodiments. For example, it uses liquid nitrogen freezing technology to transfer the sample to the laboratory for pyrolysis analysis to obtain pyrolysis parameter S1; it corrects the pyrolysis parameter S1 obtained from the pyrolysis analysis to the amount of retained oil; it converts the amount of retained oil into an oil-bearing volume; it uses the oil-bearing volume to calibrate the nuclear magnetic resonance T2 spectrum to determine the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging; and it continuously calculates the pyrolysis parameter S1 based on the starting time of the pyrolysis parameter S1 and the nuclear magnetic resonance logging T2 spectrum. The specific implementation methods of each step will not be repeated here.
[0035] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.
[0036] In addition to the above embodiments, this application also provides a computing device. Figure 7 A block diagram is shown of an exemplary computing device 60 suitable for implementing embodiments of the present application. The computing device 60 may be a computer system or a server. Figure 7 The computing device 60 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.
[0037] like Figure 7 As shown, the components of computing device 60 may include, but are not limited to: one or more processors or processing units 601, system memory 602, and bus 603 connecting different system components (including system memory 602 and processing unit 601).
[0038] The computing device 60 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computing device 60, including volatile and non-volatile media, removable and non-removable media.
[0039] System memory 602 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 6021 and / or cache memory 6022. Computing device 60 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, ROM 6023 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 7(Not shown in the image, usually referred to as "hard drive"). Although not shown in... Figure 7 The diagram illustrates that a disk drive for reading and writing to removable non-volatile disks (e.g., "floppy disks") and an optical disk drive for reading and writing to removable non-volatile optical disks (e.g., CD-ROMs, DVD-ROMs, or other optical media) can be provided. In these cases, each drive can be connected to a bus 603 connecting different system components via one or more data media interfaces. The system memory 602 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this application.
[0040] A program / utility 6025 having a set (at least one) of program modules 6024 may be stored, for example, in system memory 602, and such program modules 6024 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment. Program modules 6024 typically perform the functions and / or methods described in the embodiments of this application.
[0041] The computing device 60 can also communicate with one or more external devices 604 (such as a keyboard, pointing device, display, etc.). This communication can be performed via input / output (I / O) interface 605. Furthermore, the computing device 60 can also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via network adapter 606. Figure 7 As shown, network adapter 606 communicates with other modules of computing device 60 (such as processing unit 601, etc.) via bus 603, which connects different system components. It should be understood that, although... Figure 7 Other hardware and / or software modules may be used in conjunction with computing device 60, as not shown in the diagram.
[0042] The processing unit 601 executes various functional applications and data processing by running programs stored in the system memory 602. For example, it uses liquid nitrogen freezing technology to transfer samples to a laboratory for pyrolysis analysis to obtain pyrolysis parameters S1; corrects the pyrolysis parameters S1 obtained from the pyrolysis analysis to the amount of retained oil; converts the amount of retained oil into oil-bearing volume; calibrates the nuclear magnetic resonance T2 spectrum using the oil-bearing volume to determine the starting time for calculating the pyrolysis parameters S1 using nuclear magnetic resonance logging; and continuously calculates the pyrolysis parameters S1 based on the starting time of the pyrolysis parameters S1 and the nuclear magnetic resonance logging T2 spectrum. The specific implementation methods of each step will not be repeated here. It should be noted that although several units / modules or sub-units / sub-modules of the apparatus for calculating shale oil reservoir pyrolysis parameters have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of a unit / module described above can be further divided into multiple units / modules for specificity.
[0043] In the description of this application, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0044] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0045] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interface; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
[0046] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0047] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0048] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0049] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.
[0050] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.
Claims
1. A method for calculating pyrolysis parameters of shale oil reservoirs, characterized in that, The method for calculating pyrolysis parameters of shale oil reservoirs includes the following steps: S10, the sample was transferred to the laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain the pyrolysis parameter S1; S20, the pyrolysis parameter S1 obtained from the pyrolysis analysis is corrected to the amount of oil retained; S30, converting the amount of retained oil into oil-containing volume; S40, using the oil-bearing volume to calibrate the nuclear magnetic resonance T2 spectrum, determine the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging; S50, the pyrolysis parameter S1 is continuously calculated based on the starting time of the pyrolysis parameter S1 and the nuclear magnetic resonance logging T2 spectrum.
2. The method for calculating pyrolysis parameters of shale oil reservoirs according to claim 1, characterized in that, Step S10 includes the following steps: S110, after the core is removed from the casing, the sample is transferred to the laboratory using liquid nitrogen freezing technology; S120, prepare parallel samples in liquid nitrogen; S130, the parallel sample is divided into sample 1 and sample 2, sample 1 is subjected to pyrolysis analysis, and sample 2 is subjected to nuclear magnetic resonance T2 spectrum measurement; S140, obtain the pyrolysis parameter S1 and the nuclear magnetic resonance T2 spectrum.
3. The method for calculating pyrolysis parameters of shale oil reservoirs according to claim 1, characterized in that, Step S20 includes the following steps: S210, the pyrolysis parameter S1 obtained from the pyrolysis analysis is corrected to the amount of oil retained based on the following formula: （1） Among them, W r The amount of oil retained after conversion using S1 is expressed in mg / g; S1 is the pyrolysis parameter, expressed in mg / g; C is a correction factor, representing the hydrocarbon content coefficient in crude oil.
4. The method for calculating pyrolysis parameters of shale oil reservoirs according to claim 1, characterized in that, Step S30 includes the following steps: S310, the amount of retained oil is converted into oil-containing volume based on the following formula: （2） Among them, V o The measured oil-bearing volume from S1 conversion is dimensionless; W r The amount of oil retained after S1 conversion is expressed in mg / g; B is a correction factor.
5. The method for calculating pyrolysis parameters of shale oil reservoirs according to claim 2, characterized in that, Step S40 includes the following steps: S410, Based on the nuclear magnetic resonance T2 spectrum, determine the starting time for calculating the pyrolysis parameter S1 using nuclear magnetic resonance logging; S420, the starting time of S1 is determined by the following formula when the mean square error is minimized: （3） （4） in, The NMR calculation of the oil-bearing volume at a starting time 'a' is dimensionless. It is the oil volume component corresponding to the i-th NMR time T2; V is the root mean square error at the starting time 'a'; o The measured oil volume is dimensionless; n is the number of samples.
6. An apparatus for calculating pyrolysis parameters of shale oil reservoirs, characterized in that, include: The pyrolysis module is used to transfer samples to the laboratory using liquid nitrogen freezing technology for pyrolysis analysis to obtain S1. The correction module is used to correct the S1 obtained from pyrolysis analysis to the amount of retained oil. The conversion module is used to convert the amount of retained oil into the volume of oil. The first calculation module is used to calibrate the nuclear magnetic resonance T2 spectrum using the oil-bearing volume and determine the start time of the nuclear magnetic resonance logging calculation S1. The second calculation module is used to continuously calculate S1 based on the start time of S1 and the nuclear magnetic resonance logging T2 spectrum.
7. A computer-readable storage medium, characterized in that, It includes instructions that, when run on a computer, cause the computer to perform the method for calculating pyrolysis parameters of shale oil reservoirs as described in any one of claims 1 to 5.
8. A computing device, characterized in that, The computing device includes: At least one processor, memory, and input / output unit; The memory is used to store computer programs, and the processor is used to call the computer programs stored in the memory to execute the method for calculating shale oil reservoir pyrolysis parameters as described in any one of claims 1 to 5.